Temperate climate zone, because big cities don't function well during the arctic winter, nor summer actually
The negatives include accelerating population ageing, the skewed sex ratio, and the decline in the working-age population, which would threaten economic growth. Moreover, in 1980 the government had pledged that the one-child policy would last for just one generation, so change was overdue.
The answer is C. Norway, Sweden and Finland.
Hope it helps.
Well biosphere needs all the sphere to live